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Space and stuff

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Massive piece of space junk dubbed WTF on collision course with Earth
Manmade object designated WT1190F – which could date from Apollo space missions – to strike Earth next month
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A huge piece of space debris – which may date from the Apollo space missions – is on a collision course with Earth.
Scientists warn the manmade junk, officially designated WT1190F but nicknamed WTF, will strike Earth at about 6.15am on November 13.
Much of the hollow object, which may be a spent rocket stage or panelling shed by a recent Moon mission, should burn up in the atmosphere.
But any remnants could dive bomb from the skies – and an international team of astronomers are using it to test emergency plans for dealing with potentially apocalyptic space objects.

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The light object in the centre is WT1190F as observed by the University of Hawaii 2.2-metre telescope
WT1190F, which is one to two metres in diameter, is expect to fall in the Indian Ocean about 40 miles off the southern tip of Sri Lanka.
I would not necessarily want to be going fishing directly underneath it.
Bill Gray, who is helping track the debris
Independent astronomy software developer Bill Gray, who has been working to track the debris with Nasa’s Jet Propulsion Laboratory in Pasadena, California, told journal Nature: “I would not necessarily want to be going fishing directly underneath it.”
Much space junk orbits the Earth, but WT1190F is the first known piece to re-enter the atmosphere.
The disruptive gravity of the Sun and Moon are thought to have kicked it into a highly elliptical orbit, far outside the Moon’s, which has put it on a collision course with Earth.
An asteroid hurtling through space at 78,000mph is set to skim past Earth on Halloween.
A joint US-European is to practice protecting Earth from going the way of the dinosaurs by crashing a spaceship into an asteroid, knock it off course, in a scheme right out of a Hollywood blockbuster.
 
F1 engine testing (these were the engines on the Saturn rockets. Still the biggest thrust producers we have come up with)



And some up close starts at 7:23

It is loud, you should play it with the volume up and the sub kicked to 11!!!!

Sound pressure level at the bottom of the stand was measured at 205db, which is simply a continuous shockwave. It literally distorted the air and caused it to "clip" like an amplifier clips when it's overdriven. The loudest "sound" near sea level is 194db*. 202db is enough pressure to kill you instantaneously. 180db is what 1lb of TNT produces at 15 feet. A 357 magnum pistol measures around 156db.

Additionally the test stand is still there. It's visible from South Huntsville. It's huge. The "mist" in the video are large water jets they used to try and attenuate the shockwaves.

One thing to note is that the dB scale is logarithmic. That means about 3 dB more means double the amplitude.
 


Iv been watching a lot of Neil Degrasse Tyson and Richard Dawkins debates of late. Well worth a watch for anyone who hasn't seen them.





 
There are some good little videos too that come from the same organisation. Short summarys of different theory's etc. the Fermi paradox one and the dark matter/energy ones are very good for those looking to learn a little more around the subject.



 

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